Railway-car truck



May 14, 1929. C, 1 W CLASEN 1,712,746

RAILWAY CAR TRUCK Filed NOV' 18, 192.7 2 Sheets-Sheet l L, 26 /4 /5 /7 /7a a 1.11.3 1

; INVENTo BW we@ ATTORN EYS May 14, 19229. c. J. w. cLAsx-:N 1,712,746

RA ILWAY CAR TRUCK Filed Nov. 18, 1927 2 Sheets-Sheet 2 Fjg.H.

INVENTOR ATTORNEYS tions and modifications thereofas will be Patented May 14, 1929.

UNITED sTA TEs PATENT OFFICE. L'

- CLAUS J. wan-NER cLAsEN, onDAvENPonT, Iowa, AssrGNoa To THE BETTENnoaF COMPANY, OF'BETTENDORF.. IOWA, A coaronA'rIoN oF IOWA:r

Application led November This invention relates to railway car trucks and vwhile it is ..t o be understood that the invention is of quite general application to structures mounted to travel n railway 5 tracks, the truck herein shown is particularly designed for railway. ,freight cars.

yThe present invention has for its object to provide a truck in which the wheels are mounted 4for independent rotation, which is of simple and ruggedconstruction and in which the independent mounting of .the' wheels is obtained without increase in the A further object is to provide a truck inK which the wheels which travel on .each'rail are journaled 'in a rigid one piece side frame extending longitudinally the full len th of `the truck and in which the two wheel rames are securely joined toget er by suitable transverse connecting mem ers.

3 lVith the above and other objects in View,

structure in its various forms as illustrated in the accompanying drawings hereinafter describedand particularly set forth in the appended claims, together with such varia;

apparent to one skilled in the art to the invention appertams.

Reference should be had to the accomwhich Fig. 3 is an end elevation ofthe truckpartially in section 1n F1g.'1.

Figs. 4 and View and a fragmentary slde Velevation rethe line indicated at spectively showing a modified frame construction. i

Y the invention may be said to comprise thel panying drawings forming a part of thisV RAILWAY-'CAR franai-- 1s, isz?. serial No. 234,139.

Figa 6 and 7 are a fragmentary plan View and afragmentary side elevation re spectively showing another modified form of frame construction.

Figs. 8 and 9 are a fragmentary side elevation and a transverse section respectively showing the bolster support employed in frame structures such as shown in Figs. 4 v

to 7, inclusive, Fig. 9 lbeing a section taken on the line indicated at 9-9 in.y Fig. 8.

the truck wheels 1 are anged car wheels and eachiis mountedy on a separate short axle 2, the wheels at each` side of the truck being `mounted 'in a separate side frame iReferrin-g to the accom anying drawings, l

which is preferably in the form of a one" piece casting. Each of the two side frames has. spaced parallel. longitudinahside members 4 which are joined by integral end portions 5. Each side member has an arched top chord 6 and a bottom chord 7 of truss form. The top and bottom chords 6 and 7 are joined by integral columns 8 which are spaced apart to provide a central bol,- ster receiving openingv 9 and the columns are so formed that the lower portion 9a of the opening is somewhat wider than thev upper portion of the opening to permit insertion .and removal of a bolster. While the frame members as .showniherein are yU shaped Lin section, it is obvious that theframe member may be ,L sha ed vor T shaped if desired. IThe inclined en portionsof the bottom chordI f7 terminate short of the ends of the side members to provide end portions 10 'which overlie the axles 2 on opposite sidesl` o'f the'- supporting wheels. fThe side members 1 -fof each of the frames are. spaced apart saflcientlyto permit mounting of the wheels lvbetween them and vthe-side members are provided adjacent-the ends of the bottom chords 7 with bearing portions adapted to receive the rwheel axles. Each extension v,10 'is providedon its under` side` with a semi-cylindrical recess 1-1. forming a' half bearing` and bolted to. the under side ofthe extension is a complemental bearing retaining member 12 which completes the the.A axle bearing is mounted. Each4 axle 2 has bearing collars 13 mounted upon its op' 4,Cylindrical opening in the frame in which 5 are a ifragmentary -plan faces ofthe chords 7.

rings v1G it within the cylindrical openings in the frame formed by the recess 11 and removable bearing retaining member 12 and these race rings are retained rtvithin Vthe openings by means of caps 17 bolted to the outer faces of the side members, each cap 17 being provided wth a cylindrical flange 17, which lits within the frame opening and bears against the outer race ring. rlhe vbearing collar and the outer race rings. are

extending around the bolster receiving opening, The bot-tom chords 7 are joined by a web 19, which is preferably Hush with the upper top surfaces of the chords 7 and forms the bottom of the bolster receiving opening. The connection between the bottom chords may include integral stifening ribs 19 whichextend from the under side of the web '19 to the plane of the lower Integral webs 20 join the columns 8 at the opposite sides of the4 bolster receiving opening and these -webs form the opposite sides of the bolster receiving opening.v The top chords. 6 are joined by an integral web 21 extending across the top of the bolster receiving opening and this web is provided with an open" ing 2K2' through which the side bearings 23 of the bolster may project. The bolster24 is yieldably supported on the frame'membersand it is` to be understood that, in so far as the present invention is concerned, various bolster, supporting andguiding means may be employed in which thevbolster may be directly guided in the frame members or in which the guiding and supporting means permit -a certain amount of lateral movement of the bolster with respect to the frame members. The bolster 24 is provided with. vertical Vguide ribs 25 at the opposite endsy thereof,which overlie t-he outer sides of the columns 8 of the inner and outer side members of each of the two sideframes.

` The bolster 24 is supported at its vopposite ends1by compression coil springs 26 which are interposed between the under side of the bolster and a spring plank27 which 'jrests at its opposite ends upon the bottom chords 7 and connecting webs 19V of the two side frames. Y is preferably of channel shape is attached The spring plank 27 whichA to the webs 19 by suitable means such as rivets 27HL 'and is provided with openings which receive short lugs 28 formed integral `with the webs 19, which serve to rigidly ets 30 from which are suspended links 31,

whichare held in place in the brackets 30 by means of retaining pins 32 and which carry brake beams 33 at their lower ends. The brake beams 33 carry atI their op vosito ends brake shoes 34;, which'are adapte to engage the treads of the adjacent wheels. Each brake beam is provided with a truss rod 35 which is adjustably connected with the ends of the beam and extends at its center over the outer end of a strut 36, which is rigidly attached to the brake beam. Each strut 36 is provided with a transverse slot 37 through which extends a lever 38 which is connected to the strut by means of a pivot 39. The lower ends of the two levers 38 are conunected b means of a link 40,'tthe upper end of'one o the levers may be connected by any suitable means with the brake operating mechanism on the ca r and the upper end of the other lever is connected by a short link y1ste a bracket 42 attached to the bolster 24.

able, the manufacture of the truck is simplitied and the cost of manufacture is materially reduced. By mounting the wheels` .independently on short axles, the heavy cross axles commonly employed are eliminated and a frame of ample strength maybe provided without increasingthe weight of the truck overl the weight of a standard truck of the type having cross axles. By providing the removablebearing retaining-'members on each of the side frames, any wheel can be removed and replaced by simply jacking up one end of the truck. The mounting of the brake beams at the opposite ends of the truck is very advantageous in that it brings the brakes toa position in which they are readily accessible for replacement or repair. Furthermore, the placing of the brake beams at the ends instead of at the center of the truck provides a wider space at the center for the support of the bolster and permits shortening of the wheel base when this is desirable.

It will also be apparent that the provision of thrust roller bearings for the axles.

bearing friction.

lin Figs. 4 and 5 of the drawing, there\is shown a modified frame 1construction in which the extending portions l()a of the side members of the frames are not integrally joined at their outer ends, but are rigidly connected by a rigid end member 43 which is bolted to each ot the extensions and rigidly connects the two side frames at the end of the truck. ln this modification, the brake beam supporting brackets 44 are termed integrally with the end member 43 instead ot with the side trame members.

lin Figs. G and 'l ot the drawing, there is shown a modified construction in which the integral end portions of the trames are provided with a dat outer face to which is bolted a rigid cross member 45 which connects the two iframes at each end oi the truck;

in each oit the two modifications shown in Figs. 4 to 7, the two frames ot the truck are .in the term oit one piece castings in which the side members ot the frames are joined centrally thereof by integral webs as shown in Figs. l to 3. lin these modilications, liowever, the two side trames are rigidly connected at their opposite ends by means ot the end members and the spring plank 27 may be omitted, the bolster supporting springs in this casev being supported directly uponthe transverse connecting webs i9 forming the bottoms of the bolster receiving openings, as shown in Figs. 8 and 9' of the drawing.

llt will be seen that the pairs of frame members rigidly connected together and to the spring plank provide a rugged construction which may be ot relatively 'light weight.

Furthermore, it is to be understood that the particular terms ot apparatus shown and described, and the particular procedure set forth, are presented for purposes oit explanation and illustration and that various inodiideations of said apparatus and procedure can be made without departing from my invention as defined in the appended claims.

lll/'hat il claim is:

l. ri truck having side trames, each-comprising' spaced longitudinal side members adapted to receive the wheels between them and provided with axle receiving portions intermediate the. f center and ends of the i iframe, integral'conneting portions joining said side members adjacent the Vcenters thereof, and a spring plank rigidly connecting the central portions of thev frames;

2. A truck having side frames, each comprising spaced longitudinal side members adapted to receive-the wheels 4between them and provided with axle lreceiving portions intermediate the center and ends ot the framefintegral connecting portions joining said side members adjacent the centers thereof, and at the opposite ends of the frame,

and a spring plank rigidly connecting the central portiy ns of the frames.

3. A sideframe for trucks comprising spaced longitudinal side membersadapted to receive the wheels between them and provided with axle receiving portions intermediate the cen er and ends ot the frame,

said raine having a bolster receiving open-` ing substantially midway between the ends thereof, and integral webs alongside the bolster opening joining the side members. n

4. A side iiame for trucks comprising spaced longitudinal side members adapted to receive the wheels between them and provided with axle receiving portions intermediate. the center `and ends oil the frame, said frame having a bolster receiving opening substantially midway between the ends thereof, vertical webs integral with the side members at opposite sides et' the bolster receiving opening, and a spring supporting web at the bottom of the said opening integral with said side members.

5. d one piece side frame for trucks com prising spaced longitudinal side members, each having a top chord and a truss shaped bottom chord, and spaced integral columns connecting the top and bottomlchords and forming between them a bolster receiving opening, said side members having aule receiving portions adjacent opposite ends ot the bottom chords, integral webs joining the columns of the two side members, and an integral web joining the bottom chords.

6. A one piece side trame for trucks comprising spaced longitudinal side "members, each having a top chord and a truss shaped bottom chord, and spaced integral columns connecting the top and bottom chords and forming between them a bolster receiving opening, said side members having axle receiving portions on the under sides thereof beyond the ends ot the bottom chord, and having extending integrally connected end portions, integral webs joining the columns oit the two side members and forming the sides of the bolster opening and an integral web joining the bottom chords and forming the bottom ot the bolster opening.

if. A one piece side frame for trucks comprising spaced longitudinal side members integrally joined at the ends -thereot and adjacent the center, said side members having axle receiving portions intermediate the integrally connected portions thereof, 1and a brake beam supporting member formed Yiuntegrally with the frame at each end thereof. 8. A truck having two identical side frames eaehrin-the form of an integral casting having laterally spaced longitudinal members adapted to receive the supporting wheels between them and having transversely alined axle receiving ortions, each frame aving centrally thereo a bolster receiving opening, and means for holding the frames in parallel relation.

-92 A truck having two identical side' frames each in the form of an integral casting having laterally spaced longitudinal members adapted to receive the supporting wheels between them and having transversely alined axle receiving portions, each frame having centrally thereof, a bolster receiving opening, and end members rigidly connecting said side frames.

10. A truck having two identical side frames each in the form of an integral casting having laterally spaced longitudinal members adapted to receive the supporting wheels between them and having transversely alined axle receiving portions, each frame having centrally thereof, a bolster receiving opening, end members rigidly connecting said side frames, and a spring plank rigidly kconnecting the central portions of said side frames.

In testimony whereof I aiix my Signature.

CLAUS J. WERNER VCLASEN. 

